Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December correlates with a minor temperature reduction, down from November's mild 56.1°F (13.4°C) to a frosty 47.5°F (8.6°C). The month of December records an average low-temperature of 35.1°F (1.7°C).Humidity
The months with the highest humidity are March and December, with an average relative humidity of 79%.Rainfall
In December, in Johnsons Crossroads, the rain falls for 13.5 days. Throughout December, 3.35" (85mm) of precipitation is accumulated. Throughout the year, there are 179.9 rainfall days, and 43.19" (1097mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Johnsons Crossroads, during December, snow falls for 3.9 days and regularly aggregates up to 1.02" (26mm) of snow. In Johnsons Crossroads, during the entire year, snow falls for 18.5 days and aggregates up to 5.98" (152mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:40 am and sunset at 4:31 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Johnsons Crossroads have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Johnsons Crossroads, TN
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in December
Johnsons Crossroads, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Johnsons Crossroads, TN
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in December
Johnsons Crossroads, TN
- Average humidity in December: 79%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Johnsons Crossroads, TN
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is July (5.08").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in December
Johnsons Crossroads, TN
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in December
Johnsons Crossroads, TN
- Average snowfall in December: 1.02"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Johnsons Crossroads, TN
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Johnsons Crossroads, TN
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Johnsons Crossroads, TN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Johnsons Crossroads, TN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Johnsons Crossroads, TN
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Johnsons Crossroads, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Johnsons Crossroads, Tennessee, USA
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